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Finding the Fourth Proportional to 250,670.88, 375,918.72 and 100,872.30

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Solution

The fourth proportional to 250,670.88, 375,918.72 and 100,872.30 is: 151,273.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,670.88 : 375,918.72 = 100,872.30 : x
  2. Step 2: Convert to fraction form
    250,670.88/375,918.72 = 100,872.30/x
  3. Step 3: Cross multiply
    250,670.88x = 375,918.72 × 100,872.30
  4. Step 4: Simplify right side
    250,670.88x = 37,919,785,899.46
  5. Step 5: Solve for x
    x = 37,919,785,899.46/250,670.88
  6. Step 6: Final answer
    x = 151,273.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.